Corinna Vinschen, le Fri 15 Feb 2008 10:45:47 +0100, a écrit : > On Feb 15 09:37, klement2 wrote: > > After excellently quick correction of pthread_kill when the argument > > signal is zero > > (by cgf), I have found another problem related to signal handling. The > > code in attachment > > demonstrates it ( because of pthread_kill, it must be run with > > cygwin1-20080213.dll and newer ). > > It seams that signal handlers for signals like SIGSEGV, SIGFPE are > > called only once, > > This patch was necessary to get SEHs (and so Cygwin) working correctly > on Windows 2008 Server. The new behaviour is covered by POSIX: > > http://www.opengroup.org/onlinepubs/009695399/functions/signal.html > > "If and when the function returns, if the value of sig was SIGFPE, > SIGILL, or SIGSEGV or any other implementation-defined value > corresponding to a computational exception, the behavior is undefined. > Otherwise, the program shall resume execution at the point it was > interrupted."
His handler doesn't return, it calls pthread_exit(), thus killing the thread causing the SIGFPE, SIGILL or SIGSEGV. Samuel -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
